00-C-2764
shall be furnished. The clutch shall be controlled from the operator's position
and be arranged to engage and disengage instantly while the engine is running.
3.11.9 Electrical system. The electrical system for the revolving
superstructure shall include the equipment as specified herein. Power shall be
supplied by a 12- or 24-volt (V) alternator.
3.11.9.1 Wiring harness. The electrical cable shall be manufacturer's
standard normally provided on commercial models. The harness shall be clipped
to the frame members or installed in conduit. The circuits shall be color or
number traced. Means to prevent chafing of the cable, when passing through
structural members or sheet metal, shall be provided.
3.11.9.2 Floodlight mounting locations. Detachable light housings shall be
located and equipped as specified herein. They shall not extend beyond the side
of the cab of the revolving superstructure unless provision is made for an
adjustable bracket to fold clear of the cab sides for transport. The housing
shall be located so that the lenses cannot be seen by the operator when seated
in a normal operating position. The floodlights shall be secured in brackets
that are designed and constructed to withstand severe shock and vibration, and
that will permit horizontal and vertical movement of the light beam and positive
clamping of the lights in any position.
3.11.9.2.1 Revolving superstructure floodlights. The revolving
superstructure cab shall be equipped with two light housings equipped with
floodlights mounted to illuminate the working area. When specified (see 6.2),
two additional floodlights mounted on each side of the base section of boom
shall be furnished to illuminate the working area.
3.11.9.2.2 Skirt-mounted floodlights. When specified (see 6.2), two
housings equipped with floodlights shall be mounted, one on each side of the
superstructure and the skirt as near the sides and bottom of the skirt as
practicable, but not higher than midpoint between the bottom of the skirt and
the bottom of the operator's window.
3.11.9.3 Interior lights. The cab shall have three ceiling lights
effectively located, with commercial fixtures for 21 candlepower, rough service
lamps with bulb.
3.11.9.4 Instrument lights. Instrument lights shall be provided for the
illumination of the instrument panel. The lights shall have a 12- or 24V rating
and be of a quality equal to that used in good commercial practice.
3.11.9.5 Circuits. circuit breakers. and switches. Lights shall be
controlled by single-pole, single-throw type, toggle switches, and be protected
by reset type circuit breakers. Switches shall be located on the instrument
panel in the revolving superstructure within reach of the operator when seated.
One switch and associated electrical circuit shall be provided for the
independent control of the following light combinations as furnished:
a.
Revolving superstructure floodlights.
b.
Skirt-mounted floodlights, when applicable
c.
Interior cab lights.
d.
Instrument lights.
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